Machine for pressing soles on shoes



.July 14, 1936-y M. H. BALLARD ET AL 2,047,185

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MACHINE FOR PRESSING SOLES 'O SHOES i I Filed oct.. 4, v1.952 1'8sheets-sheet '7 420- i ,Figfll vam @Z2 sa@ July 14,v 1936. M. H. BALLARDET Al. 2,047,185

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MACHINE FOR PRESSING SOLES ON SHOES Filed Oct. 4, 1932 18 Sheets-Sheet10 July 14, 1936. M. H. BALLARD ETAL '2,047,135 i MACHINE 'FOR PRESSGSOLES ON SHOES Filed oct. 4, 1932 I 1s sheets-sheet 11 lJuly 14, 1936..MH. BALLARD ET Al. 2,047,185

I MACHINE FR PRESSING SOLES ON SHOES Filed Oct. 4, 1932 18 SheetS-Sheet12 July 14, 1 936. M; H. BALLARD ET Al. l2,047,185

MACHINE FOR PRESSING SOLES 0N SHES 18 Sheets-Sheet 13 I Filed oct. 4,1932 Fig@ July 14, 1936. M. H. BALLARD ET Al.

MACHINE FOR PREssING soLEs oN sHoEs 18 Sheets-Sheet 14 Filed Oct. 4,1932 igea:

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M. H. BALLARD g'r Al. MACHINE FOR PRESSING SOLES ONVSHOES' Filed oci.y4, i932 A 11a Sheets-sheet 18 Patented July 14, 1936 MACHINE FORPRESSING SOLES GN SHOES Milton H. Ballard, Beverly, and Darius W.Bunker, Quincy, and Sidney J. Finn and John 'F. Hardy, Beverly, ThomasH. Seely, Melrose. and William D. Thomas, Lynniield, Mass., assignorstoUnited Shoe Machinery Corporation, Paterson, N. J., a corporation ofNew Jersey Application October 4, 1932. Serial No. 636,202 In GreatBritain September 13, 1932 172 Claims.

This invention relates to machines for use in the manufacture of shoesand is illustrated hercin as embodied in a machine for use in the cementattachment of soles to shoes.

In the attaching of soles to compo shoes, it is vide improved means forrelatively locating a shoe and sole prior to the application ofpressure, to render the introduction of a shoe and sole into the machineand the removal of the shoe from the machine easy and convenient, and toprovide imthe usual practice to roughen the marginal face of provedSole-Pressing Dads the longitudinal Cur- 5 the sole, apply cementthereto and allow it to vature of profile of which may readily be variedto dry. The overlasted margin of the upper is also meet differentconditions of work presented by roughened, similar cement appliedthereto, and the different shoes to which soles are to be atm allowed todry. Before relatively locating the tached.

shoe and the sole and placing-them under pres- With these and otherobjects in view the illussure, a 'softener is applied to the cement onthe trated machine comprises a plurality of shoe and sole andthe shoebottom, or to the cement on one sole receiving pads mounted on a carrierwhich, of those parts, preferably on the sole, which as illustrated, hasthe form of a turret or table 15 softener activates the cement andcauses the shoe arranged for rotation about a vertical axis The 15 andsole to adhere permanently tov each other pads are preferably mountedside toward the opafter the application of pressurev for a suitableerator. that is, with their longer axes tangential to time, formerlyfrom twenty to thirty minutes. the path 0f rotation 0f the Pads, thenumber 0i Recent developments in the art, such, for expads illustratedbeing eight. Shoe engaging ample, as that disclosed in Letters Patent ofthe means, illustrated as a toe rest and heel rest, are-20 UnitedvStates No. 1,959,321, granted May 15 provided for each pad and, asshown, are sup- 1934, upon an application of Walter H. Wedported on theside of the pad which is remote ger, have produced softeners by the useof which from the operator. Such arrangement of the shoe the time duringwhich the shoe need remain engaging means provides convenient access tothe under pressure has been greatly shortened, so pad. After the shoeengaging means have been 25 that the number of devices in use at onetime for moved over the pad they may be, and as illusmaintaining theshoes and soles under pressure trated are, given mOVemeni'f toward theDad to maybe greatly reduced, apply pressure to the shoe against thepad. For The general object of this invention is to prothis purpose alever extending transversely of the (3@ vide an improved machine forpressing together shoe and pivoted between its ends is provided 30 shoesand soles which will be thoroughly effective for the toe rest and asimilar lever for the heel in obtaining contact under reasonablepressure rest. These levers are mounted for movement between the shoesand soles at all portions that Withthe rests radially of the turret intoand out are to be united, for general use in cement-atof posi on overthe pads and, as illustrated, move taching or pressing soles to shoes.The illustrated about a axis below the sole pad and on that side 35machine is capable of large production andispar- 0f the pad which isremote from the operator. ticularly convenient under conditions suchthat As illustrated, pressure is applied to the toe and the pressureneed not be maintained for a great heel rests by lifting the inner endsof the levers length of time. by means of a plunger which, asillustrated, is 40 Other objects are to provide an improved mauidoperated. A connection between the plunger 4,3 chine by which adequatepressure properly disand the levers is provided which, during theinitial tributed between the forepart and the rear part movement of theplunger, distributes the pressure of the shoe will be applied to pressthe shoe and between the levers, resistance of the shoe effect' soletogether, to insure that adequate pressure will ing a locking of thedistributing means and the be applied to each shoe before it leaves theopplunger sol that during the later part of the 45 erator, to insurethat the machine will not be opmovement of the plunger the toe and heelrests erated at a rate higher than has been decided are moved bodily andequally to sink the shoe into upon as affording a suilicient time forthe setting the pad, thus insuring that the total pressure apof quicksetting cement, to insure that a predeplied to the forepart of the shoe,which has a termined pressure will be applied to each shoe, larger area,will be greater than that applied to 50 and to insure that the machinecontrols will be opthe rear part of the shoe, which has a smaller eratedonly in the order in which they are intendarea. Thus the nal pressureper unit of area on ed to be operated in so far as that order is imtheforepart and on the heel part is substantially portant. uniforr. Furtherobjects of the invention are to pro- 'Ihe application of uid pressuretothe plunger 55 2 is, in the illustrated machine, controlled' by athree-position valve having an inlet, an outlet, and a neutral orlpressure-retaining position. Mechanism like that above referred to isprovided for each o! the pads. Each three-position valve is connected toa system through which fluid is circulated by a continuously runningpump, and in this system is a pressure-inducing valve closing of whichwill cause iluid to pass to any one of the three-position valves whichis open. Operator-controlled means is provided at the operating stationfor moving each three-position'valve to inlet position and thereafterclosing the pressure-inducing valve in the circulating system, therebycausing pressure to be applied to that plunger whose three-positionvalve has been moved to inlet position. 'I'he operator-controlled meansfor setting the three-position valve at inlet position at one station,for example the operating station, has connections also for moving toexhaust position the three-position valve belonging to another pad, forexample the one at the left oi the operator and next to be broughty tothe operating station. Thus, a shoe which is in the eighth position ofthe turret may be relieved from pressure substantially simultaneouslywith the application of pressure to a shoe at the first or operatingstation, both actions taking place without movement of the turret. Theorganization is such that when shoes are to be removed from the machinewithout substituting others in their places, the operator-controlledmeans may be operated to relieve successively the shoe engaging means asthey are brought into the eighth position without operating thepressure-applying means at the operating station, a stop being providedfor limiting movement of the operator-controlled means so that it cannotbe moved far enough to close the pressure-inducing valve in thecirculating system.

Novel mechanism is provided for imparting intermittent partial rotationsto the turret and Ior holding the turret locked in its positions ofrest. In the illustrated construction, an eight-armed spider is attachedto the turret, each arm oi the spider carrying a roll. In positions ofrest of the turret, two adjacent rolls engage opposite ends of a spiralcam path passing around the cylindrical surface of a cylinder mountedfor rotation on its axis and connected by a clutch to a source of powerby which it is given two rotations and stopped. The lead or pitch of thespiral groove increases from each end toward the center so that theturret is started slowly and stopped slowly without shock and moves morerapidly during the intermediate portion of each movement. In positionsof rest the turret is locked' by two rolls carried by adjacent arms ofthe spider, one at each end of the spiral groove.

Each pad comprises a box in which is a yielding and resilient memberlong enough to accommodate at least the forepart and shank portions ofthe largest shoe to be operated on. in order to'adapt the pad foroperation on shoes having a widely varying angle between the plane ofthe forepart and the shank, that is shoes which are to have heels ofwidely varying heights, the pad box is provided with pad supportingmechanism which is adjustable about a transverse axis iocatedsubstantially at the ball or break line. 1n the illustratedconstruction, the ends oi the pad support rest on xed supports and itsintermediate portion is adjustable up and down to enable the pad toconform to the longitudinal contour of the bottom oi various styles oflasts.

For relatively locating the shoe and sole with -respect to each other,novel positioning mechanism is provided. A sole having the cement on itsmargin activated with solvent and having a hole punched at thetransverse center of its heel- 5 seat portion is placed on the pad bythe operator with its ball line substantially over the transverse axisabout which the pad is adjustable. At the rear end of each pad oi theillustrated machine is mounted a tongue carrying a pin, the tongue beingmounted for movement bodily longitudinally and laterally of the pad andfor swinging movement toward and from the pad. The operator moves thetongue over the rear end of the sole and engages the pin with the holein the 15 sole. Forepart engaging feelers are then allowed to movetoward the sides of the sole and engage the sole at each side at pointsapproximately at the ends of the tip line and at the ends ot the ballline. The feelers thus find the sole in the 20 position in which it wasplaced by the operator.

The feelers are carried by arms pivoted to the box, the arrangementbeing such that the relative location longitudinally of the sole of thetip line engaging feelers and the ball line engaging feelers will varyautomatically in accordance with the widthfof the shoe and the feelersoi the two sets will, of course, be more widely separated for a largeshoe than for a small shoe. As illustrated, the feelers are locked insole-engaging position and carry gages for locating a shoe with respectto the sole. After a shoe has been placed on the sole and is located atits forepart by the shoe gages carried by the feelers, the shoe engagingdevices, comprising the toe rest and the heel rest, are swung over theshoe. This movement is utilized relatively to located the rear ends ofthe sole and shoe. A longitudinally and laterally movable shoe nding andlocating member is moved forward, by movement of the shoe engag" 40 ingdevices over the shoe, and acts to find the rear end of the shoewhatever its lateral or longitudinal position with respect to the padmember. Automatic means operated by further movement of the shoeengaging means locks the shoe locating member and then shifts the soleengaging pin laterally into position under the shoe to aline the solewith the shoe. Varying conditions are taken care of by provision forlateral adjustment of the pin relatively to the final position of theshoe positioning member.

These and other features of the invention, including variousconstructions, combinations and arrangements of parts, will appear morefully from the following detailed description when read in connectionwith the accompanying drawings and will be pointed out in the appendedclaims.

In the drawings,

Fig. l is a side elevation of a machine embodying the present invention;

Fig. 2 is a fragmentary plan view of the machine, certain duplicatedparts being omitted for simplicity of illustration;

Fig. 3 is a vertical section, partly in elevation, of the central turretportion of the machine;

Fig. 4 is a rea' elevation of the lower portion of the machine showingparticularly the turret rotating mechanism;

Fig. 4a, is a detail, partly in section, ci parts shown in Fig. 4;

Fig. 5 is an enlarged view of a portion ci the machine in sideelevation, partly in section, showing the clutch and clutch controllinginecl'iam nlsm;

